Amethyst, with its royal purple colour, is the gemstone of February. One of the most well-known legends concerns the origin of its name, which derives from the Greek “amethystos,” meaning “not intoxicated.” According to Greek mythology, Dionysus, the god of wine, was enraged with a mortal and was about to unleash his tigers to punish him when the goddess Diana transformed the man into a crystal statue to protect him. Dionysus, repentant, poured wine over the statue, thus staining the crystal a beautiful purple colour: thus, Amethyst was born. Since then, Amethyst has been associated with protection from drunkenness and the promotion of sobriety. In ancient Rome, Amethyst was considered a protective gemstone and was often engraved in banquet cups to prevent guests from becoming intoxicated. This association between Amethyst and sobriety has led to a widespread belief that wearing this stone can promote moderate behaviour and a clear mind. Among the historical figures who loved Amethyst, Leonardo da Vinci stands out, the renowned artist and Renaissance scholar. It is said that Da Vinci believed that Amethyst had the power to increase intelligence and protect the wearer from evil thoughts. His devotion to this gemstone reflects his pursuit of knowledge and wisdom.